Tính A=...

#include <stdio.h>
#include <conio.h>
#include <math.h>
void main()
{
   int n;
   float x;
   double bt1,bt2,A;
   clrscr();
   printf(" CHUONG TRINH TINH A = [(x^2 + x + 1)^n] + [(x^2 - x + 1)^n]");
   printf("\nNhap so nguyen n = ");
   scanf("%d",&n);
   printf("Nhap so thuc x = ");
   scanf("%f",&x);
   bt1=x*x+x+1;
   bt2=x*x-x+1;
   A=pow(bt1,n)+pow(bt2,n);
   printf("A = [(%.3f^2 + %.3f + 1)^%d] + [(%.3f^2 - %.3f +1)^%d] = %.5lf",x,x,n,x,x,n,A);
   getch();
}